Transcript Alternative Resources 5-3

Alternative Resources 2/20/15
5-3 pgs. 118-125
IN:
Name three
problems with fossil
fuels.
Terms to Learn and Objectives
Terms
Nuclear energy
solar energy
wind energy
hydroelectric energy
biomass
gasohol
geothermal energy
 Objectives:
• Describe alternatives to using fossil fuels.
• List advantages and disadvantages to each.

The Need for Alternative Resources
 The
energy needs of industry,
transportation, and housing are
increasingly met by electricity.
However…
 Most
electricity is currently
produced from fossil fuels,
which are nonrenewable and
cause pollution with burned.
Alternative Resources
Nuclear Energy – the form of
energy associated with changes in
the nucleus of an atom.
Nuclear Energy

Fission – when the nuclei of radioactive
atoms are split and energy is released.
Pros

Nuclear power plants provide alternative
sources of energy without the problems
that come with fossil fuels.
Cons

Nuclear power plants produce dangerous
radioactive wastes.
Yucca Mountain
Cons

Nuclear power plants generate lots of heat.

If a plant’s cooling system were to stop working
the plant would overheat and large amount a
radiation would escape into the environment.
Alternative Energy Sources
Solar Energy – energy from the Sun.
Pros
•After the purchase of equipment the energy
is free.
•The energy does not create pollution.
•The energy is unlimited.
Alternative Energy Sources
Wind Energy – energy that comes
from the wind.
Alternative Energy Sources
Hydroelectric Energy – electricity
produced by falling
water.
Alternative Energy Sources
Biomass – organic matter, such as
plants, wood, and waste, that
contains stored energy.
Alternative Energy Sources
Gasohol – a mixture of gasoline and
alcohol that is burned as fuel.
Alternative Energy Sources
Energy – energy
produced by the heat within the
Earth’s crust.
 Geothermal
OUT:
List 2 energy
alternatives to fossil fuels,
and give one advantage
and one disadvantage of
each alternative.